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I know 87 regular is fine for the Tundra 5.7.

Will i get better mileage with 89 or 93 (91 not offered here)?

if so is the price difference per gallon worth it?
 

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No....If 87 is the recommended octane than that is what will get you the best bang for the buck. Search through the threads. There is already all the info you need by scrolling down a page or two.
 

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I know 87 regular is fine for the Tundra 5.7.

Will i get better mileage with 89 or 93 (91 not offered here)?

if so is the price difference per gallon worth it?
I dunno man alot of people feel pretty strongly about this. I use Amoco/BP 93 octane in all my NEW VEHICLES. In '95 I used all brands in my corvette, and I swear I got better gas mileage and better performance in that LT-1 from the Amoco supreme. Since then-that's what I go with. Oh yeah and over 200k on that motor when I sold it-and it would still lay a block of rubber. I put any old cheap 87 in my '93 honda accord se and plan on riding her out past 400k so go figure?
 

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I dunno man alot of people feel pretty strongly about this. I use Amoco/BP 93 octane in all my NEW VEHICLES. In '95 I used all brands in my corvette, and I swear I got better gas mileage and better performance in that LT-1 from the Amoco supreme. Since then-that's what I go with. Oh yeah and over 200k on that motor when I sold it-and it would still lay a block of rubber. I put any old cheap 87 in my '93 honda accord se and plan on riding her out past 400k so go figure?
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